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The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
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Development and Characterizations of Engineered Electrospun Bio-Based Polyurethane Containing Essential Oils.

Nehir Arik1, Nesrin Horzum1,2, Yen Bach Truong3

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This study fabricated bio-based thermoplastic polyurethane (TPU) fibrous scaffolds with essential oils (EOs). The research optimized electrospinning parameters for wound dressing and food packaging applications.

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Area of Science:

  • Biomaterials Engineering
  • Polymer Science
  • Materials Science

Background:

  • Thermoplastic polyurethane (TPU) is a versatile biomaterial.
  • Essential oils (EOs) possess valuable properties for biomedical and packaging applications.
  • Electrospun fibrous scaffolds offer high surface area and tunable properties.

Purpose of the Study:

  • To fabricate bio-based thermoplastic polyurethane (TPU) fibrous scaffolds incorporating essential oils (EOs).
  • To investigate the impact of different EO types (St. John's Wort oil, lavender oil, virgin olive oil) and concentrations on TPU electrospinning.
  • To determine the influence of electrospinning parameters (voltage, flow rate, tip distance) on fiber morphology and properties.

Main Methods:

  • Fabrication of TPU/EO fibrous scaffolds via electrospinning.
  • Characterization using scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle (CA) measurements, and Fourier transform infrared spectroscopy (FTIR).
  • Systematic investigation of EO type and concentration effects on electrospinnability and fiber characteristics.

Main Results:

  • EO incorporation increased fiber diameter, decreased surface roughness, and reduced contact angle.
  • TPU fibers with St. John's Wort oil and lavender oil exhibited greater flexibility than those with virgin olive oil.
  • Optimized electrospinning parameters yielded fibers suitable for specific applications.

Conclusions:

  • Bio-based TPU fibrous scaffolds can be successfully fabricated with incorporated essential oils.
  • EO type and concentration significantly influence the morphology, diameter, and wettability of electrospun fibers.
  • The developed scaffolds show promise for advanced wound dressing and food packaging applications.